/* STL Marketplace - Ana CSS Dosyası */

/* CSS Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #fafafa;
    color: #1a1a1a;
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: 2rem;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.logo-image {
    height: 50px;
    width: auto;
    border-radius: 8px;
    transition: transform 0.2s ease;
}

.logo a:hover .logo-image {
    transform: scale(1.05);
}

.logo i {
    font-size: 1.75rem;
    color: #667eea;
}

/* Search Bar */
.search-bar {
    flex: 1;
    max-width: 500px;
}

.search-bar form {
    display: flex;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 2rem;
    font-size: 0.875rem;
    background: #f8fafc;
    transition: all 0.2s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-bar button {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    color: #64748b;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: #667eea;
    background: #f1f5f9;
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: #64748b;
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-btn:hover {
    background: #f1f5f9;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    min-width: 200px;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #374151;
    text-decoration: none;
    transition: background 0.2s ease;
}

.user-dropdown a:hover {
    background: #f8fafc;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
    min-height: 44px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 1px solid #667eea;
}

.btn-outline:hover:not(:disabled) {
    background: #667eea;
    color: white;
}

.btn-secondary {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover:not(:disabled) {
    background: #e2e8f0;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
    min-height: 52px;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    min-height: 36px;
}

.btn-icon {
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    color: #374151;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.btn-icon:hover {
    background: white;
    transform: scale(1.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.features, .categories, .featured-products {
    padding: 4rem 0;
}

.features {
    background: #f8fafc;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: #64748b;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.feature-card p {
    color: #64748b;
    line-height: 1.6;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.category-card p {
    color: #6b7280;
    font-size: 0.875rem;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: #f8fafc;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.no-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 3rem;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 2;
}

.product-content {
    padding: 1.25rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-description {
    color: #6b7280;
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-seller {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.stars {
    display: flex;
    gap: 0.125rem;
}

.stars i {
    color: #d1d5db;
    font-size: 0.875rem;
}

.stars i.active {
    color: #fbbf24;
}

.product-rating span {
    color: #6b7280;
    font-size: 0.875rem;
    margin-left: 0.25rem;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1a1a1a;
}

.product-actions {
    display: flex;
    gap: 0.75rem;
}

.product-actions .btn {
    flex: 1;
}

.product-actions .btn-outline {
    flex: 0 0 auto;
    padding: 0.75rem;
}

/* Stats Section */
.stats {
    padding: 4rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* Footer Styles */
.footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--light-text);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--light-text);
    font-size: 0.9rem;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

/* Footer Linklerini Alt Alta Getir - ULTRA GÜÇLÜ KURALLAR */
footer .footer-section .footer-links,
footer .footer-section ul.footer-links,
.footer-section .footer-links,
.footer-links {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
    display: block !important;
    width: 100% !important;
    overflow: visible !important;
    position: relative !important;
    z-index: 1 !important;
}

footer .footer-section .footer-links li,
footer .footer-section ul.footer-links li,
.footer-section .footer-links li,
.footer-links li {
    display: block !important;
    width: 100% !important;
    margin: 18px 0 !important;
    padding: 0 !important;
    float: none !important;
    clear: both !important;
    position: relative !important;
    min-height: 30px !important;
    line-height: 2 !important;
    border: none !important;
    background: none !important;
}

footer .footer-section .footer-links li a,
footer .footer-section ul.footer-links li a,
.footer-section .footer-links li a,
.footer-links li a {
    display: block !important;
    width: 100% !important;
    padding: 12px 0 !important;
    color: #8d99ae !important;
    text-decoration: none !important;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
    border: none !important;
    background: none !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    position: relative !important;
}

footer .footer-section .footer-links li a:hover,
footer .footer-section ul.footer-links li a:hover,
.footer-section .footer-links li a:hover,
.footer-links li a:hover {
    color: #4cc9f0 !important;
    padding-left: 25px !important;
    transform: translateX(12px) scale(1.02) !important;
    background: linear-gradient(90deg, rgba(76, 201, 240, 0.1) 0%, rgba(76, 201, 240, 0.05) 100%) !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 12px rgba(76, 201, 240, 0.2) !important;
    border-left: 3px solid #4cc9f0 !important;
}

/* Ekstra güvenlik için */
footer .footer-section .footer-links * {
    box-sizing: border-box !important;
}

/* Responsive için ekstra kurallar */
@media (max-width: 768px) {
    footer .footer-section .footer-links li,
    footer .footer-section ul.footer-links li,
    .footer-section .footer-links li,
    .footer-links li {
        margin: 15px 0 !important;
        text-align: center !important;
        max-width: 100% !important;
    }

    footer .footer-section .footer-links li a,
    footer .footer-section ul.footer-links li a,
    .footer-section .footer-links li a,
    .footer-links li a {
        padding: 15px !important;
        margin: 0 auto !important;
        max-width: 220px !important;
        text-align: center !important;
        justify-content: center !important;
        display: flex !important;
        align-items: center !important;
    }

    footer .footer-section .footer-links li a:hover,
    footer .footer-section ul.footer-links li a:hover,
    .footer-section .footer-links li a:hover,
    .footer-links li a:hover {
        padding: 15px !important;
        transform: translateY(-3px) scale(1.05) !important;
        border-left: none !important;
        border-bottom: 3px solid #4cc9f0 !important;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* No Products State */
.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: #6b7280;
}

.no-products i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: #d1d5db;
}

.no-products h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #374151;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        height: auto;
        padding: 1rem 0;
    }
    
    .search-bar {
        order: 3;
        width: 100%;
        margin-top: 1rem;
    }
    
    .nav {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Alert Styles */
.alert {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    font-size: 0.9rem;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

/* Cart Badge Styles */
.cart-badge {
    background: #ef4444;
    color: white;
    border-radius: 50%;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}